LG Art Cool LA180HSV Service Sheet

Art Cool™ Mirror High-Efficiency Single Zone Systems
LA180HSV System (LAN180HSV Indoor Units / LAU180HSV Outdoor Units)
LA240HSV System (LAN240HSV Indoor Units / LAU240HSV Outdoor Units)
LAN180HSV and LAN240HSV Indoor Units
Error
Code
1 Indoor unit return air thermistor is disconnected or is shorted out.
2 Indoor unit inlet pipe thermistor is disconnected or is shorted out.
5 Communication failure from indoor unit to outdoor unit.
6 Indoor unit outlet pipe thermistor has disconnected or has shorted out.
9 Indoor unit electrically erasable programmable read-only memory (EEPROM) error.
10 Indoor unit fan has locked up (fan motor operation failure).
12 Indoor unit middle pipe thermistor is disconnected or is shorted out.
Direct current (DC) peak error / internal power module (IPM) fault;
21
22 Current transformer2 (CT2) error; alternating current (AC) input is too high.
23
25 Voltage to the system is too low or too high.
26 Inverter compressor has seized up or is not providing rotation.
Prospective short circuit (PSC) fault error; current to inverter compressor between
27
28 Inverter compressor DC voltage is too high.
29 Inverter compressor amperage is too high.
31 Current to the current transformer (CT) thermistor is too low.
32 Inverter compressor discharge pipe temperature is too high.
40 Current transformer (CT) thermistor is disconnected or is shorted out.
41 Inverter compressor discharge pipe thermistor is disconnected or is shorted out.
44 Outdoor unit inlet air thermistor is disconnected or is shorted out.
45 Middle thermistor of outdoor unit condenser coil is disconnected or is shorted out.
46 Outdoor unit suction line thermistor is disconnected or is shorted out.
48 Outdoor unit coil outlet (liquid line) thermistor is disconnected or is shorted out.
53 Communication failure from outdoor unit to indoor unit.
60 Outdoor unit printed circuit board (PCB) EEPROM check sum error.
61 Outdoor unit condenser coil temperature is too high.
62 Outdoor unit inverter compressor PCB heat sink temperature is too high.
63 Condenser coil pipe thermistor temperature is too low.
65 Heat sink thermistor has disconnected or has shorted out.
67 Outdoor brushless direct current (BLDC) fan motor lock error.
Refer to Service Manuals posted on www.lg-dfs.com to troubleshoot individual error codes.
DEFINING COMMON ERROR CODES
Location of light-emitting
Description
compressor DC voltage was too high.
DC link voltage is too low.
AC and DC converter circuit is too high.
diode (LED) displays
No. of Times Indoor Unit LEDs Blink
LED1
(Plasma LED) (Power LED)
1X
2X
—
6X
9X
—
1X
2X
2X
2X
2X
2X
2X
2X
2X
3X
3X
4X
4X
4X
4X
4X
4X
5X
6X
6X
6X
6X
6X
6X
LED2
LED1
LED2
—
—
5X
—
—
1X
2X
1X
2X
3X
5X
6X
7X
8X
9X
1X
2X
—
1X
4X
5X
6X
8X
3X
—
1X
2X
3X
5X
7X
1